JEE_V1_N2_RP8 J. Viswanatha Rao S. Sivanagaraju G. Ganesh Journal on Electrical Engineering 2230 – 7176 1 2 85 94 Vector based load flow, radial distribution system, balanced and unbalanced systems This paper proposes vector based load flow technique for the solution of balanced and unbalanced radial distribution networks using sparsity technique. The proposed method presents a simple algorithm to solve radial distribution systems with realistic R/X ratio, which involves the evaluation of a simple algebraic expression for receiving end voltage. The algorithm uses basic principle of circuit theory, and can be easily understood. The proposed algorithm has been tested with several distribution systems and results are compared with an existing method [10]. The effectiveness of the proposed algorithm is demonstrated through three examples, two for balanced and another for unbalanced radial distribution networks. October - December 2007 Copyright © 2007 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=445